Fuel oil transfer systems used onboard diesel propelled vessels are required to have （）.
- Atwo fuel oil transfer pumps provided where one is to be independent of the main engine
- Btwo fuel oil transfer pumps, with a combined capacity exceeding the maximum consumption of the main engine
- Cengine driven transfer pumps and only used in constant speed applications
- Dthe capacity of the engine driven pump exceed the consumption rate of the engine to which it is attached